Vertipedia - MBB Bo 105CBS

Overview

Data on design, manufacture and status

Design authority: Messerschmidt-Bölkow-Blohm GmbH

Primary manufacturer: Messerschmidt-Bölkow-Blohm GmbH

Parent type: MBB Bo 105

Aircraft status: Operational

Configuration

Primary flight and mechanical characteristics

VTOL type: Helicopter

Lift devices: 1 Single main rotor

Dedicated control device: 1 Tail rotor

Crew required: 1 in Side-by-side arrangement

Landing gear: Skids

Key Characteristics

Data on key physical features

Aircraft Details

Data on aircraft configuration, weights, flight performance and equipment

Layout and Dimensions

Weights and Performance

Engine Details

Primary Lift Device

Primary Control Device

Overall Dimensions
Overall Height:
Overall Length:
Overall Width:

Airframe Dimensions
Airframe Length:
Airframe Width:
Airframe Height:

Landing Gear Dimensions
Landing Gear Base:
Landing Gear Track:

Cabin Dimensions
Cabin Internal Height:
Cabin Internal Length:
Cabin Internal Width:

Weights
Max Gross Weight (ground):
Max Gross Weight (airborne):
Max Take-off Weight:
Empty Weight:

Climb Performance
Max Rate of Climb:

Hover Performance
Hover Ceiling IGE:
Hover Ceiling OGE:

Limitations
Max Level Flight Speed:
Never Exceed Speed:
Service Ceiling:

Range and Endurance
Max Range:
Max Endurance:

Provided powerplant data is for uninstalled, sea level, static operations.

Powerplant
Number of engines:	2
Designation:	Allison 250-C20B (as used on A109A) turbine
Manufacturer:	Allison Engine Company

Normal Ratings
Max continuous:
Take-off / rated:	258 kW	346 hp
Intermediate:
Maximum:

OEI Ratings
OEI contingency:
OEI continuous:
OEI 30-second:
OEI intermediate:

NACA 0012 main rotor blade airfoil section

Main Rotor Characteristics
Diameter:	9.91 m	32.50 ft
RPM:	425.0 rpm	425.0 rpm
Direction of Rotation:	Counterclockwise
Hub Type:	Hingeless main rotor system

Main Rotor Blade Characteristics
Blade Construction:	Fiber glass blades
Blade Chord:	0.299 m	0.98 ft
Blade Tip Geometry:	Conventional
Blade Twist:
Number of Blades:	4

Main Rotor Derived Characteristics
Disc Area:	77.07 m²	829.6 ft²
Disc Loading:
Solidity:	0.0769

Main Rotor Blade Derived Characteristics
Blade area per blade:	1.48 m²	16.0 ft²
Tip Speed:	220.44 m/s	723.2 fps

Tail Rotor Characteristics
Diameter:	1.91 m	6.25 ft
Configuration:	Pusher
Direction of Rotation:	Top blade aft
RPM:	2114 rpm	2114 rpm

Tail Rotor Blade Characteristics
Number of Blades:	2
Blade Construction:
Blade Chord:	0.173 m	0.57 ft
Blade Twist:

Tail Rotor Derived Characteristics
Disc Area:	2.85 m²	30.7 ft²
Solidity:	0.1154

Tail Rotor Blade Derived Characteristics
Tip Speed:	210.86 m/s	691.8 fps
Blade Area (per blade):	0.164 m²	1.77 ft²

References

References and sources used

The Twin-Engine BO-105

A.C. Ballauer and P. F. Sheridan
VERTIFLITE August 1969, August 1969 (page 6)
Periodical
Good description of the overall vehicle

Related VFS Resources

Resources related to the Bo 105CBS , provided by the Vertical Flight Society.

Forum Proceedings

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Related Public Resources

Resources related to the Bo 105CBS , provided by public sources across the internet.

Publicly-funded resources provided by the US Government

Search at NASA Technical Reports Server (NTRS).

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Public resources provided by select scholarly and academic sources

Search at European Rotorcraft Forum Document Repository.

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Images

Overview

Attribution

Main rotor

Attribution

Tail rotor

Attribution

Number of engines:	2 Turbines
Max Level Flight Speed:
Max Range:
Max Endurance:

MBB Bo 105CBS

Related milestones

MBB Bo 105CBS

Overview

Configuration

Key Characteristics

Aircraft Details

References

Related VFS Resources

Forum Proceedings

Vertiflite articles

Web files from vtol.org

Webpages from vtol.org

Images from the VFS Gallery

Related Public Resources

Publicly-funded resources provided by the US Government

Public resources provided by select scholarly and academic sources

Additional links

Images

Overview

Main rotor

Tail rotor

Milestones related to the Bo 105CBS

Main Rotor Diameter:	9.91 m	32.50 ft
Max Gross Weight (ground):